Not all email is simply installed on your device or computer. In this post an overview of common problems and sollutions.
Webmail standard on CPanel
If your webhosting has a CPanel installed as part of their webhostingmanager (WHM) software, emal configuration can be done locally (on your server) or virtually (domain bridge). For Cpanel local usage email can be used directly on the server with webmail: mail.domainname.ext or domainname.ext/webmail
Many users allready have an gmail account running on their devices, they use the gamail app or another applications to collect and send email.
It is possible to incorporate a non-gmail account in this application.
Email in gmail applications